Home / 1,005,423.88-1,388,894.80-914,619.64

Finding the Fourth Proportional to 1,005,423.88, 1,388,894.80 and 914,619.64

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Solution

The fourth proportional to 1,005,423.88, 1,388,894.80 and 914,619.64 is: 1,263,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,423.88 : 1,388,894.80 = 914,619.64 : x
  2. Step 2: Convert to fraction form
    1,005,423.88/1,388,894.80 = 914,619.64/x
  3. Step 3: Cross multiply
    1,005,423.88x = 1,388,894.80 × 914,619.64
  4. Step 4: Simplify right side
    1,005,423.88x = 1,270,310,461,973.87
  5. Step 5: Solve for x
    x = 1,270,310,461,973.87/1,005,423.88
  6. Step 6: Final answer
    x = 1,263,457.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.